Silicon sample holder for molecular beam epitaxy on pre-fabricat

Coating apparatus – Gas or vapor deposition – Work support

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

118503, 269286, C23C 1424

Patent

active

053165861

ABSTRACT:
The sample holder of the invention is formed of the same semiconductor crystal as the integrated circuit on which the molecular beam expitaxial process is to be performed. In the preferred embodiment, the sample holder comprises three stacked micro-machined silicon wafers: a silicon base wafer having a square micro-machined center opening corresponding in size and shape to the active area of a CCD imager chip, a silicon center wafer micro-machined as an annulus having radially inwardly pointing fingers whose ends abut the edges of and center the CCD imager chip within the annulus, and a silicon top wafer micro-machined as an annulus having cantilevered membranes which extend over the top of the CCD imager chip. The micro-machined silicon wafers are stacked in the order given above with the CCD imager chip centered in the center wafer and sandwiched between the base and top wafers. The thickness of the center wafer is about 20% less than the thickness of the CCD imager chip. Preferably, four titanium wires, each grasping the edges of the top and base wafers, compress all three wafers together, flexing the cantilever fingers of the top wafer to accommodate the thickness of the CCD imager chip, acting as a spring holding the CCD imager chip in place.

REFERENCES:
patent: 3796882 (1974-03-01), Cahill
patent: 4592308 (1986-06-01), Shih
patent: 4877573 (1989-11-01), Nilsson
patent: 5123636 (1992-06-01), Dumler

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Silicon sample holder for molecular beam epitaxy on pre-fabricat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silicon sample holder for molecular beam epitaxy on pre-fabricat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon sample holder for molecular beam epitaxy on pre-fabricat will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1625592

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.